Contact baking mechanism of a toaster

Abstract

A contact baking mechanism of a toaster comprises a baking tray, a fixed bracket, and a mobile mechanism. The baking tray is provided in the fixed bracket and includes a left baking tray and a right baking tray. The mobile mechanism includes a bread tray and a mobile bracket. The bread tray is provided between the left baking tray and the right baking tray, and one end of the bread tray is clamped in the fixed bracket through a T-shaped groove. The mobile bracket is provided outside the fixed bracket and fixedly connected with the bread tray. The left and right baking trays are moved back and forth by an elastic mechanism when the bread tray moves up and down along the T-shaped groove.

What is claimed is: 
     
       1. A contact baking mechanism of a toaster, comprising two baking tray sets, a fixed bracket and a mobile mechanism, the two baking tray sets being provided in the fixed bracket, each of the baking tray sets comprising a left baking tray and a right baking tray, the mobile mechanism comprising two bread trays and a mobile bracket, the two bread trays being provided between the left baking tray and the right baking tray and clamped in the fixed bracket through a T-shaped groove, the mobile bracket being provided outside the fixed bracket and fixedly connected with the bread trays,
 wherein the left baking tray and the right baking tray are moved back and forth by an elastic mechanism when the bread trays move up and down along the T-shaped groove; 
 wherein each of the left and right baking trays includes a heating sheet that is configured to contact and heat a food product by a clamping force generated by the elastic mechanism; 
 wherein the clamping force is flexibly adjusted according to a thickness of the food product; and 
 wherein the fixed bracket includes a front bracket, a back bracket, a left bracket and a right bracket, the front bracket and the back bracket are connected at the top by an upper bracket and at the bottom by a lower bracket, the left bracket and the right bracket are L-shaped, a guide groove perpendicular to the baking trays is provided between bottom ends of the lower bracket, the left bracket and the right bracket, a center of a bottom of each baking tray is provided with a guide post matched with the guide groove, and the each baking tray moves along the guide groove through the guide post. 
 
     
     
       2. The contact baking mechanism of a toaster of  claim 1 , wherein the baking trays are provided in parallel in the fixed bracket, the front bracket and the back bracket have the same structure and are provided symmetrically, the left bracket and the right bracket have the same structure and are provided symmetrically; the bread trays are clamped between the front bracket and the back bracket through the T shaped-groove, the bread trays are correspondingly provided with the baking trays, the mobile bracket is provided outside the front bracket, the elastic mechanism comprising a wire spring and a tension spring. 
     
     
       3. The contact baking mechanism of a toaster of  claim 2 , wherein a hanging pin is provided at both ends of top and bottom of the baking trays, a hole of the hanging pin matching with the hanging pin is provided on the front bracket and the back bracket, the hanging pin is provided in the hole of the hanging pin, one end of two staggered ends of the wire spring is fixed on the hanging pin on the top of the left baking tray, and the other end is fixed on the hanging pin on the right baking tray, the wire spring is clamped outside the front bracket or the back bracket through a pair of fixed buckles and a pair of buttress posts. 
     
     
       4. The contact baking mechanism of a toaster of  claim 3 , wherein the fixed buckles are symmetrically provided on both sides of the T-shaped groove, the buttress posts are symmetrically provided on both sides of the T-shaped groove and above the fixed buckles, the wire spring is pressed to deform and generate tension when the bread trays move downward. 
     
     
       5. The contact baking mechanism of a toaster of  claim 3 , wherein the tension spring is provided outside the front bracket or the back bracket, one end of the tension spring is fixed on the hanging pin of the left baking tray, and the other end is fixed on the hanging pin corresponding to the right baking tray. 
     
     
       6. The contact baking mechanism of a toaster of  claim 2 , wherein the heating sheet is an aluminum sheet, the aluminum sheet includes one side which faces the food and is sprayed with Teflon coating or ceramic coating and the other side that is brazed with a heating pipe which is provided with terminal blocks at two ends, and support rods are provided on the aluminum sheet, the support rods are bent at the end to form hanging pins. 
     
     
       7. The contact baking mechanism of a toaster of  claim 2 , wherein the heating sheet is made of glass ceramics or metal plate, a febrile membrane is printed on the glass ceramics or the metal plate, and the metal plate is sprayed with Teflon coating or ceramic coating on one side facing the food. 
     
     
       8. The contact baking mechanism of a toaster of  claim 1 , wherein a guide post is provided in the middle part of the outer side of the fixed bracket, the mobile bracket is clamped on the guide post, a limit spring is provided on the guide post, the limit spring is provided above the mobile bracket, a return spring is provided above the mobile bracket, one end of the return spring is fixed on the mobile bracket and the other end is fixed on the top of the front bracket. 
     
     
       9. The contact baking mechanism of a toaster of  claim 1 , wherein a flip handle is provided on the mobile bracket which is driven to move by the flip handle. 
     
     
       10. The contact baking mechanism of a toaster of  claim 1 , wherein a top cover is provided on the top of the fixed bracket, a bread entrance is provided at a corresponding position of the baking trays on the top cover. 
     
     
       11. A contact baking mechanism of a toaster, comprising:
 two baking tray sets; 
 a fixed bracket; and 
 a mobile mechanism, 
 wherein the two baking tray sets are provided in parallel in the fixed bracket, and each baking tray set includes a left baking tray and a right baking tray; the fixed bracket includes a front bracket, a back bracket, a left bracket, and a right bracket, the front bracket and the back bracket have the same structure and are symmetrical with each other, and the left bracket and the right bracket have the same structure and are symmetrical with each other; 
 wherein the mobile mechanism includes two bread trays and a mobile bracket, each bread tray is provided between the left baking tray and the right baking tray and is clamped between the front bracket and the back bracket through a respective T-shaped groove, the mobile bracket is provided outside the front bracket of the fixed bracket and is attached to the bread tray, the left baking tray and the right baking tray are movable back and forth by an elastic mechanism when the bread trays move up and down along the respective T-shaped grooves, and the elastic mechanism includes a wire spring for each baking tray set; 
 wherein a first hanging pin is provided at both ends of a top and bottom of each of the left and right baking trays, a second hanging pin includes a moving hole which corresponds with the first hanging pin and is provided on the front bracket and the back bracket for the first hanging pin to extend therein, and one end of two staggered ends of the wire spring is fixed on the first hanging pin at the top of the left baking tray, and the other end is fixed on the first hanging pin at the right baking tray; 
 wherein the wire spring is clamped outside the front bracket or the back bracket through a pair of fixed buckles and a pair of buttress posts which are above the fixed buckles; 
 wherein each of the pair of fixed buckles and each of the pair of buttress posts are symmetrically provided on both sides of the T-shaped groove, and the wire spring is pressed to deform and generate tension when the bread trays move downward; 
 wherein the elastic mechanism further includes a tension spring for each baking tray set, the tension spring being provided outside the front bracket or the back bracket, one end of the tension spring is fixed on the first hanging pin of the left baking tray, and the other end is fixed on the first hanging pin corresponding to the right baking tray, the mobile bracket is movable from a non-working state, in which the mobile bracket is located at an upper part of the front bracket, the left baking tray and the right baking tray are in a separate state, and the wire spring and the tension spring are in a relaxed state, to a working state, whereby the mobile bracket is moved down, the bread tray is moved down, the end of the bread tray compresses the wire spring to deform and produce tension, the tension of the wire spring drives the left baking tray and the right baking tray to move in the opposite direction along the moving hole of the second hanging pin to clamp a bread slice, at the same time, the tension spring is compressed by the left baking tray and the right baking tray; 
 wherein each of the left and right baking trays comprises a base plate for directly contacting food to be toasted and a heating element for heating the base plate, the base plate including a food-contacting side and an opposing side; 
 wherein the base plate is an aluminium sheet sprayed with polytetrafluoroethylene (Teflon) or ceramic coating on the food-contacting side and the heating element is a heating pipe brazed on the opposing side of the base plate, or the base plate is a glass ceramics plate or a metal plate and the heating element is a febrile membrane printed on the opposing side of the base plate. 
 
     
     
       12. The contact baking mechanism of a toaster of  claim 11 , wherein the front bracket and the back bracket are connected at the top by an upper bracket and at the bottom by a lower bracket, the left bracket and the right bracket re L-shaped, a guide groove perpendicular to the baking tray sets is provided between bottom ends of the lower bracket, the left bracket and the right bracket, a center of a bottom of each baking tray set is provided with a guide post matched with the guide groove, and each baking tray set moves along the guide groove through the guide post. 
     
     
       13. The contact baking mechanism of a toaster of  claim 11 , wherein a guide post is provided in the middle part of the outer side of the fixed bracket, the mobile bracket is clamped on the guide post, a limit spring is provided on the guide post, the limit spring is provided above the mobile bracket, a return spring is provided above the mobile bracket one end of the return spring is fixed on the mobile bracket and the other end is fixed on the top of the front bracket. 
     
     
       14. The contact baking mechanism of a toaster of  claim 11 , wherein a flip handle is provided on the mobile bracket which is driven to move by the flip handle. 
     
     
       15. The contact baking mechanism of a toaster of  claim 11 , wherein a top cover is provided on the top of the fixed bracket, a bread entrance is provided at the corresponding position of the baking trays on the top cover. 
     
     
       16. The contact baking mechanism of a toaster of  claim 11 , wherein the heating pipe is provided with terminal blocks at two ends, and support rods are provided on the aluminum sheet, ends of the support rods are bent to form hanging pins. 
     
     
       17. The contact baking mechanism of a toaster of  claim 11 , wherein the metal plate is sprayed with a Teflon coating or ceramic coating on the food-contacting side of the base plate.